package thesis.filesharing.bo;

import java.util.List;

import com.google.appengine.api.datastore.Key;

import thesis.filesharing.model.Exercise;

public interface ExerciseBO {
	
	public Exercise saveExercise(Exercise exercise, String key, List<String> tags);
	public Exercise findExerciseById(Key exerciseKey);
	public List<Exercise> listExercisesOfClass(Key classKey, String exerciseType);
}
